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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 11186011 B1

PDFFull Text
Date of Patent:
Nov. 30, 2021

Filed:

Feb. 21, 2018

Method for producing thermally crosslinkable polymers in a planetary roller extruder

Applicant:

Entex Rust & Mitschke Gmbh, Bochum, DE;

Inventors:

Harald Rust, Bochum, DE;

Klaus Massow, Hamburg, DE;

Assignee:

Entex Rust & Mitschke GmbH, Bochum, DE;

Attorney:

Smartpat PLC

Primary Examiner:

Jeffrey M Wollschlager

Int. Cl.
CPC ...
B29B 7/48 (2006.01); B29C 48/35 (2019.01); B29C 48/76 (2019.01); B29C 48/00 (2019.01); B29C 48/14 (2019.01); B29C 48/25 (2019.01); B29C 48/29 (2019.01); B29C 35/04 (2006.01); B29C 48/38 (2019.01); B29C 48/435 (2019.01); B29C 48/44 (2019.01); B29C 48/285 (2019.01); B29C 35/02 (2006.01); B29K 33/04 (2006.01); B29K 63/00 (2006.01); B29K 75/00 (2006.01); B29K 101/12 (2006.01); B29C 48/84 (2019.01); B29C 48/85 (2019.01); B29C 48/80 (2019.01);
U.S. Cl.
CPC ...
B29B 7/485 (2013.01); B29C 35/041 (2013.01); B29C 48/022 (2019.02); B29C 48/144 (2019.02); B29C 48/252 (2019.02); B29C 48/29 (2019.02); B29C 48/297 (2019.02); B29C 48/35 (2019.02); B29C 48/38 (2019.02); B29C 48/435 (2019.02); B29C 48/44 (2019.02); B29C 48/76 (2019.02); B29C 35/0227 (2013.01); B29C 48/002 (2019.02); B29C 48/767 (2019.02); B29C 48/83 (2019.02); B29C 48/84 (2019.02); B29C 48/85 (2019.02); B29K 2033/04 (2013.01); B29K 2063/00 (2013.01); B29K 2075/00 (2013.01); B29K 2101/12 (2013.01);
Abstract

A method for producing thermally crosslinkable polymers in a planetary roller extruder is presented. The planetary roller extruder has a filling part and a compounding part made of a roller cylinder region that comprises at least two, preferably at least three coupled roller cylinders, planetary spindles of which are driven by a common central spindle. The polymers are supplied in a plasticized state. The filling part is supplied with a vacuum. The flow temperatures of the central spindle and the at least two roller cylinders under a vacuum are set such that the polymers to be degassed remain in the plasticized state. One or more liquids, such as thermal crosslinkers, crosslinking accelerators, dye solutions, or dye dispersions, are metered to the plasticized polymers downstream of the vacuum degassing, preferably in a continuous manner. Finally, the resulting mixture is directly supplied to a coating assembly.

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